title: Twins of mixed races: consequences for Dutch IVF laboratories.
authors.affiliation: Department of Reproductive Medicine, University Hospital, Utrecht, The Netherlands.
authors.forename: R J
authors.initials: RJ
authors.lastname: van Kooij
authors.forename: M F
authors.initials: MF
authors.lastname: Peeters
authors.forename: E R
authors.initials: ER
authors.lastname: te Velde
mesh_terms: D004624:Embryo Transfer; D005260:Female; D005307:Fertilization in Vitro; D006801:Humans; D007753:Laboratories / Q000592:standards*; D008297:Male; D009426:Netherlands; D011247:Pregnancy; D011356:Product Labeling / Q000592:standards; D011786:Quality Control; D044469:Racial Groups; D012955:Societies, Medical; D013048:Specimen Handling / Q000592:standards*; D014427:Twins